对伊犁河谷新垦区不同土地利用方式下土壤剖面有机质、全氮、全磷含量进行分析，结果表明：不同土地利用方式，土壤有机质、全氮含量明显不同，都是未开垦荒地最大，杨树林地、树上干杏林地次之，油葵地（耕地）最小，撂荒地因弃耕比油葵地稍大；土壤全磷则是树上干杏林地最大，油葵地最小。新垦区土壤有机质、全氮、全磷含量随着深度变大含量都有所减小，表现出的表聚的特征，并且有机质与全氮含量随深度增加差异也逐渐减小。研究区土壤有机质含量与全氮、全磷含量相关性较好，尤其是有机质与全氮具有更高的相关度。为了防止土地肥力逐渐退化，研究区应提倡以林草为主的土地利用方式，并且在耕作中适量增施有机肥。%This paper analyzes the contents of soil organic matter(SOM) 、total - N,total - P of different types of land use in new reclamation area of Yili River valley. Studies show that the soil property has significant influence over different types of land use. According to the contents of SOM, total - N, the wasteland is maximum, while the poplar forest and the apricot land follow, and the cultivated land with sunflower oil is minimum, and the abandoned land is higher than the cultivated one. According to the contents of total - P, the maximum is the apricot land, the minimum is also the cultivated land. All of the contents of soil organic matter(SOM) ,total -N,total -P in new reclamation area reduce with the depth increasing, show the character of surface gathering, the content diversity in different types of land use of SOM and total - N also decrease with the depth increasing. The content of SOM has relevance with total -N and total -P, especially more obvious to the total -N. The experimental area should advocate the types of land use of woods and grass, and add organic fertilizers in cultivated land, in order to prevent the degradation of soil fertility.
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